24 patients will be enrolled in one single center; 12 patients will be administered ARA 290 active ingredient product as daily doses for 28 days, and 12 patients will be administered a placebo as daily doses for 28 days. Individuals with IGT (impaired glucose tolerance), IFG (impaired fasting glucose) or drug-naïve type 2 diabetes will be included in the study. The population will consist of individuals of either gender, males aged 40-75 years; women aged 50-75 years and menopausal.